GlossaryTranscranial magnetic stimulation (TMS)
A non-invasive technique in which the activity of neurons is locally shut down or strengthened with the aid of a magnetic coil held in a specific place just above the head. Repetitive or rTMS can produce effects that last longer than the stimulation period itself. There is debate about its effectiveness. Proponents believe there should be more experimentation with the number and duration of different frequencies.